Buttonhole-machine.



J. ESSEN- BUTTONHQLE MACHINE. APPLICATION FILED FEB. a, 1909.

993,070, Patented May 23, 191i.

'5 SHEETS-SHEET 1.

' u' lBY @up v AORNEYS;

J. JESSEN. BUTToNHoLE MACHINE. APPLICATION FILED FEB. 3, 1909.

Patented'May 23, 1911.

5 SHEETS*SHEET Z.

Invsm'om.

Jamas J ssban.

1 i' 'W1-messes, 1

. J. JBSSBN.

BUTTONHOISE MAGHINE.

APPLIGATION FILED FEB.3,1909.

Patented May 23, 1941.

5 SHEETS-SHEET 3.

Irwin-ron JAMES JlssEN A1 TTQHNEY Patented May 23, 1911.

' 5 SHEETS-SHEM 4.

INvenToR. Jams Jassen. muy Il( J. JESSBN.. BUTTONHOLE MACHINE.PPLIGATIon FILED rm. a, 1909.

J. JESSEN.

BUTTONHOLE MACHINE.

APPLICATION FILED TEB.3,1909. 993,979, Patented May 23, 1911.

5 SHEETS-SHEET 5. 58

JAMES J EN. MgTNEYs l JAMES JESSEN, OF'MINNEAPOLIS, MINNESOTA, ASSIGNOR,BY MESNE ASSIGNMENTS, T D. 6c D. BUTTON-HOLE MACHINE COMPANY, 0FMINNEAPOLIS, MINNESOTA,

CORPORATION OF MINNESOTA.

' BUTToNHoLE-MACHIN. I

To all whom 'it concern:

Be it knowp that I, JAMES Jnssniv, of Min- `neapolis,Hennepin county,Minnesota, have invented certain new and useful Improve ments in-Buttonhole-Machines, of which the following is a specification. i

The object of my invention is to provide a also comparativelyinexpensive to manufacl j ture.

A furtlierobf'ect is to provide a button hole machine o 'such a simpledesign and mechanism that it will-require but little attention andcannot easily get out of order or adjustment.

Mv invention" consists generally in ini` -proved means-for' regulatingthe' biglit or length of the stitches.

proved feeding means.

Fiirther, the invention consists in iniproved means for shifting'thework from one side of the button 'hole to the other.

' Further, the inventioiiconsists in providin the claims.

ing means which will permit the operation A of ythe mechanism lat a highspeed without causing imperfections in the work, and, further theinvention consists in various constructions andcombinations all asheieinafter described and particularly pointed out I ii theaccompanying*drawings, forming part of this speciiicatioii, Figure 1 is"a plan view of'a button hole' machine, embodying my* invention, Fig. 2is a longiti'idinal, sectionalview on the line X- -X of Fig. 1, Fig.

3 is -a transverse, sectional View on section line Z-Z of Fig. 4.. Fig.4 is a bottom View of the machine, Fig. 5 is a'sectional 'view onShifting mechanism. l1

l new the lineiY-Y of Fig.' 4, Fig. G isa View similar to Fig. 4,Aillustrating aiiotherposition of the mechanism, Fig. 7 isa transverse,sectional view, illustrating the needle bar in. its down position, Figs.8, v9, and 10 are.

similar views, illustrating different positions 'pf'the mechanism inthestitch forming operation, Figs. 11, 12,'13 and 14 are detail 1 6 Aisadetail Sec" i Specification of Letters Patent. iipiiiiation ined'February a, ieoa s'eri'ai No. 475,7s9.-

Patented May 23, iai-i.' I

tional view, showing theconnection between the clamp gplate-and .theshifter bar, Fig. .17 illustrates a modified construction; of the meansfor operating'the 'shifter bar. Fig. 18 is a. detail View of: a'portionof the shifter mechanism.l f

In the drawings, 2 represents -a 'base or frann7 in which the operatingmechanism-of 'the button hole machine isinounted.'`

3 and 4 are upper and lower clamp plates "-'and 5 is ajgripper platecarried b the upper clamp plate and having a screw evicel G forregulating its tension on .the goods. i i is a rock shaft havingbearings in a bracket S and an upright standard -9 and provided with anarm 10 having -forled end, which hasasliding connection with a needlebar and is' 'reciprocated by the vert-ical movementof said bar.

ari'ns'12-and 13,`wh`ich are yieldingly `hield against the surface of avertically arranged 4plate 1-4 by the tension of a spring-15 coiled onthe' shaft 7 between thebracket 8 and the rocker 11. 4In the rear oftheplate 14l is a plate 16 that is vertically slidable'in guides 17provided in the standards 9 andthe plate .14 has an inwardly-turned lip18, which laps over the upper edge/of the "platel and is pendent of the'plate 16 and a vertical'movej A rocker 1 1 is secured on'the shaft 7van'dprovided with Further, the invention consists .in ini# nientsimultaneously therewith. The outer l.

face of the plate 16 is provided withfa' series zontallyfin o the pathof thero'cker'arms 12 and 13 and are engaged laterally by the -said'arms when said rocker 'isa-oscillated."

The 'eli'ect of ythis enga ement is plainly Referring to Fig. 7 it'Willbe noted .that the oscillation of the arm 13 towardtheriglit willcaiise'it to engagetlie vlug 23,- whereupon -the plates 14 and will bemoved vertically in the guide ways 17 until the' limit of the upwardmovement .is reached, (see The return stroke of the .arm lit4 will causeit to 'engag'eltheglug 22 and the plate 14 will then 'be-movedhorizontallyfon, the 'plate'l without ,impartingfmtyertical' Fig. 8.)

, 22 and 23, whichrprojectlhorif l I l/ -both4 plates -will be forceddown '(see Fig.

10). The plate 14v thus passes entirely around the sides of a square andduring its horizontal movement, the plate 16 will remain stationary, butduring the vertical movement of the plate 14, a corresponding movementwill be imparted to the late 16. The lugs 19 projecting inwardly rom the'i lower edgeiofthe plate 14, are adapted to pass between the teeth 24of a feed wheel 25- thatis secured on one end of a feed s crcw 26. Thelugs are so arranged that there will always be one of them between theteeth of the wheel and consequently premature or excessive movement ofthe wheel will be pre- "vented. These lugs, will of course, follow thestroke of the 4plate`l4and during t-he horizontal movement of'saidplate, will pass from one side of the feed wheel to the other,

* moving one of the lugs from its position vbetween the teeth on oneside to an inopera- -tive position', and-setting the other lug in anoperative position between the teeth. The purpese'of this will beobvious, for in order to maintain the continuous movement of the feedscrew in one direction by means of vertical reciprocation of. the plate14, it will evidently be necessary to shift the lugs from one side ofthe feedwheel tothe other. For instance, assuming that one of the lugsis between the teeth of the wheel on 'one side.

an .upward movement-is imparted to the plate 14 to revolvethewheel.`Then, to contnue thisV revolving movement in the same direction, it willbe necessary to move the Y- plate horizontally, so thatthe other lugwill pass between the teeth on the other side ot' the wheel and be moveddownward with the plateto-continue Athe revolution of the feed t wheelIand screw.

For the purpose of imparting an oscillating movement to the clamp platesand form-- ing-the bight of the stitches, I provide a I #longitudinalslot 27 in the upjir clamp plate .tends across themachinc and has a holeC'31- and provide a block 28 that is slidable in -S means of a screw'30.Upon loosenmg this iii'd'slot and is attached to a plate 29 by screw,the position of the blockv in the slot may vlie-changed and theoscillation of the clamp plate"regulated. The plate 29 extherein that isadapted toreceive a dependn :ing, inclined arm 32, the edge ofwhichcontacts with thewall of the opening in the platefand 'causes the Ieciprocation of 'the plate 29, when the-plate '16, to which the arm 32is secured, is moved vertically by the 4. operation of the plate. 14.

Upon the upper 'clamp plate is' a lug 33 projecting horizontally fromone' edge thereof, toward the feed screw,land av stop device34 isadjustable in the slot 35 in said the space-between the lug`33 andthestop 34, to be engaged and actuated thereby during the movement ofthe clamp plate. The plate 37 is pivoted at 39 and is 4adapted to swinghorizontally on its pivot. lt is limited in thisoscillation by a slot40,and a pin 41 and has a spring 42, which normally holds the plate inposition where its pin will be in one end of the slot 40, the engagementoi.' the lug 33 and the stop 34' with the arm 3S causing the plate toswing sufficiently to carry the pin 41 past the center of the plate andwhereupon the spring 42 will holdthe plate in either'position in whichit may be adjusted. The plate 37 is mounted on a slide 43 movable inguides 44 and on which slide-the feed screw is supported. The pin 41 ismounted in the slide 43and projects into the .slot 40, as indicated inFig. 6. The plate 37 thus has an loscillating movement independently ofthe plate 43 and a movement toward and from the feed plate with theplate 43. The screw 45 in a slot 46 also serves as aguide for the slide,andthe plate 37 has project-ions 47 and '48, in position to be engagedby fingers 49, which depend from the plate 14 and when the plate 37 isoscilla-ted by the engagement of the lug 33 or the stop 34, it will beswung into the path of the fingers 49 and during the horizontal movementof the plate 14, theadjustment of yone of'theprojections 47 or 48 in talmovement of the slide V43 and shift the reed wheel from ehgagement witha lug on one side of -the wheel into engagement with the correspondinlug on the other side, and this movement will have the eH'ect ot'reversing the direction of revolution of the feed screw when the rockingmovement of thev shaft 7 is resumed. I am thus able to form cross to theopposite side and return on that side to the starting point, withoutstopping the mechanism. 'lhe adj ustmcnt of the 'stop 34 and itsdistance from the lug 33 will be 'the stitches on one side of the buttonhole determined by tlielength 'of the button hole,

the stop heilig so arranged that the shifting operation will take placeat the moment whenv the stitching on-one side of the button hole iscompleted and the sl'iifting to the opposite side of thcbutton hole isdesired.

.'lvhe feed plate has a recess 50 therein a-ndj a screw 51 provided witha square, flanged bloclr .'32, is threaded into the-base 2 (see-' Figs.5 and 18). A plate 53 has a longitu` dnal slot 54, through which thescrew 51 passes and on this screw and the block 52 the feed plate andthe plate ."i'l'slide (sce Figa and 6). .The edges of the plaie 53 blocklhaving a sliding movement o n said" form guides for the feed plate andthe shifting of said plates in changing from one side of the but-tonhole to the other is effected by means of a bar f5v that is mounted ata. point intermediate to its ends on a pin 56, carried by'the 'feedplate and said bar has a shoe 57 at 'one; 'en'd, ,which engages thefeedscrew (see'Fig'G). AA block 57 is interposed be tween the bar 55 andthe plate 53 and -has aslot 57 therein and in which, a pin 5S car- -riedby the Aplate- 53 is loosely inserted, the

pin. The t' 1ock 57f'has a stud 58 thereon,

- l secured by a lock vnuttothe bar 55 and upon 15 loosening this nut,adjustment of the block 57 ispermitted for the purpose of changing 'theangle of its slot with respect to the bar .and regula-ting the lateralmovement of the o feed plate' according to the vwidth of the but- 57slides on the pin 58 and allowsthe bar ton hole (see F igs.'5, 6, and18). 'lhe'blockY i 55 to adjust itself lto the forward and reversemovement. ofthe feed screw. Guides i 58'are prbvidedon the feed plate oneach 'side ofthe plate/53. 1

It is sometimes desirable to vdisengage the shoe of the lever frointhescrew, as for 1n# accidentally broken and the operator wishes to beginthe l 56, which has a -vertical. movementY in the stitching over-again.In that case, the pin feed 'plat-c, may be forced .down against the i-tension of the spring 59 and when that is '-point again 4or done, thel'shoe' will be forced out of' enagement with the screw, and -the leverand eedplate can be moved back -to the starting set at -any other pointon the feed screw. l v

In.Fig.'l7, I have illustrated a modified construction, whichconsists'in providing a plate 60 adjustable on the plate 16, by means-ofscrews Gl fitting within enlarged openings in -said plate and saidplate having an arm 62'that fits withinan opening in a block 63 that ispivoted ina plate 64 that is Vslidable in a' slot 65 in the plate 29, Bymeans of this adjustment, the stroke of the plate 29 can be regulatedand the length of the stitches controlled. A i Inthe operation of mydevice, the cloth is clamped between the upper and lower clamp plates -3and 4. As the needle vibi'ates, the

,froc'k'fshaft' .f1 is'oscillated and `th'e plate 16 moved up and down.fThe arm- 32 carried by the plate 16 willrecipro'cate longitudinally theplate 29, which instar-n :will vibrate laterally the cla-m4platesandpositionthesameso that the needlia will enter firstinto thematerial and then into the button hole slit or over the edge of thematerial, to form the buttonhole stitch. The plate 14 ismoved inarectangu" lar path and in turn Will give to'the f eed screw 26'anintermittent rotationg Said feed screw, through the bar 55 and itsconnection lto they feed slide,y will .graduallyTA lconnected withsaidlfeed plate.

' carry the clamp plat'es in a longitudinal direction, t-h'us spacingthe stitches along the edge of the buttonhole. When the end of thebuttonhole vis reached, the shift plate 37 will be moved `by either thelug 33 or 34, s0 as to, osition one of its shoulders in the path o thearms 49, carried by the late 14;. As the plate 14;. is 'then movedaterally feed shaft will be rotated 'in the opposite di'- rection. Theshift v plate merely accomthe movementsof the plate 1 4, whereb said lplishcs the reversal of rotation of the feed screw.

When the feed screw is reversedin movement, the bar 55 will be swungabout its f pivotal connection 56, as viewed 4in Fig. 4, carrying theblock 57 with it, and this movement of the block 57 through the cam slot57 will cause a lateral movement in the'.

end of the' feed slide, swinging the same' about the fulcrum lug 28,andthus positioning the-clamp plates, Aso that in the reverse movementof the feed plate, the other side of the buttonhole will be. stitched.vThe same' action occurs at the-opposite end' of the`buttonhole land theparts are positioned for the 95 stitching of another buttonhole.

While I have shown and described the 'essential features of mybut-tonhole stitching- -mechanism asembodied in an attachmentI completein itse1f, which may bev-'connected -to any organized sewing-machinefor-'operation, it 'is obvious that said essential ifeaA tures of themechanism', asl pointed out in the appended claims, may beembodied inthe organized mechanism of the sewino machine, thus producing a lmachinewhich is 'more especially adapted for factory Work,

Wherein'the-machines are driven by oWer at high speed. Itis to beunderstoo that' such an embodiment of the combinationof elements setforth in the appended claims,l

may be made without departing from the' l spirit of my invention. i Iclaim as myinvention:

shaft, av plate arranged in the path of said 1. In abiitton holemachine, the'combinaf l rocker andadapted to be actuated thereby, i

said pl-a'te having.afmovementinone directionl during a portion of thestroke ofsaid rocker and a subsequent movement at right means actuatedby said plate and operatively v2. In a butt-on'holemachine, the

langles .to such preceding movement, and

combina," tion, witha feed plate and4 aclam-pfplateg of. a rockishaftfarocker mountedtherrph,

a: sliding plate4 having a; continuo mentfollowing the of and actuated`by said rocker, a .guide for 'said sliding plate andmeans operated by g'said sliding-plate and operatively connected with said feed plate. i

3. In a button hole machine, the combination,'witli a feed plate and aclamp plate, of

Y a rock shaft, a rocker secured on said shaft and having armsprojecting therefromyi sliding plate havingimeans in the/.path of saidarms and moving in the outline of a rectangle, a guide for said .slidingplate and a feed screw operated by said sliding plate and connected.with said feed plate.- l

In- ,a button hole machine, the combination, with a. feedl plate and aclamp plate, of a rock shaft, a rocker secured on said shaft, a sliding.plate having two movements` at right angles to one another and locatedin the path of said rocker and actuated thereby, fa feed wheel liaviinra series of teeth, lugs projecting from Sai slidino' plateV 'and adaptedto engage the teeth of said feed t-ion, with a feed plate and a clampplateand needle bar, of a rock shaft, a rocker secured on saidhshaft, aplate in the path-.of said rockei.' to-be engaged-.and actuatedthei'eby,- said plate havingmovements alternately at Y10,i'iglit anglesto one another, a feed screw operati\v'ely connected with said feedplate, and a feed wheel mounted on said feed screw and arranged to beactuated by said sliding plate during one ofits movements. 7. [n ,abnttonhole machine, the combination, with a feed plate and a clampplate, of a rock shaft, a rocher, a sliding plate in the path of saidrocker, said plate having two movements at right angles to one another,

.a .feed screw operatively connected with said feed plate, and meansactuated during' ou'e inovemxent only of said sliding,r plate foroperating said feed screw. l i

8. In a button hole mael'iine, the combination, with a feed plate and aclamp plate, .of a roel: shaft,.a rocker carried hy said shaft., asliding: plate in, the path of said rocker and actuated thereby in twodlreetions at. right. angles to one another, lugs on .said plate. a feedwheell having teeth between whieh said lugs project, meansoperaiivelyveonneetine said feed wheel with said feed plate, and thelugs project-ing lietween the teeth of said' `i'eed wheel havingAaninope'rative movement with their supportingr :plate and moved therebl between the teeth of said wheel or away rom the saine, and the othermovement of said sliding plate and vsaid lugs,A operating to revolvesaidfeed wheel, substantially as described.

9( In a button hole machine the combination, with afeed plate,'a clampplate and a. needle bar, vof a 'rock shaft operatively connectedwith'said bar, a rocker carried by said rock shaft, avertically movablesliding platev in the path of said rocker an arm carried thereby havingan inclined surface, and a bar having a'slot to receive' said armandoperatively connected with said feed plate.

10. In a btittonhole'maehine, the combi- `iiatiom'with a feed plate, aclamp plate" of a.

rock shaft,` a rocker secured on said sl1aft, a plate actuated by themovement of said rocher, an4 arm depending from'said plate and 'havingan inclined surface, a bar having a slotI ,to receive said larm andoperatively connected with said feed Jlate, the movement of said sliding1plate aving the effect of moving said bar engthwise to oscillate saidfeed plate, substantially as described.

l1. Ina button h'ole machine the comj biiiatioii, with a feed plate anv.a clamp plate, of.a rock shaft, a i'ockerrsecured on said shaft, avertically sliding plate, means,

interposed betweeirlsaid sliding plate and 'said rocker and having lugsin the path of said rocker to be enraged and actuated there` by,vsaidsliding pate having adepending.'

arm provided with a1i, iiiclined surface, a bai' having a slot toreceive said depending icafeed plate, substantially as desc'i'-ibed"`-`12. Ina button hole machine, theenm binatioii, with a .feedi-plateanda 4clamp plate, of a rock shaft, a plateslidable' inguides, a secondplate carried by saidfirst named plate andadapted to-move verticaliiItherewith and horil/.ontally independently thereof, said second namedlplate having lugs n'ojecting therefrom, meansmounted lon said rockshaftand adapted to engage said lugs and impart an; alternate verticaland horizontal lmovement to said second inlined sliding plate, and meansactuated'by said vertically and horizontally' sliding plate andoperatively'connected with said feed' plate,

substantiall as described.' .v 13. .In a uttoii hole machine, thecombination, with aneedle bar, a feed .plateand clamp plate, of a. feedsei-ew, inea-ns operatively connecting said screw with said feed plate,a feed wheel mounted on said screw 'and having a seriesof teeth, amlmeans including aplate having a rectangular path and adapted to 'engagesaidteetli and revolve said screw and'operativelycouneeted willi saidneedle har, snhstan'tially as described.

l-t. [u av button hole machine, the combination, with a fed plate. and aclamp plate,

ot a feed screw, ineans olwratively co|ineetangles to each other andprovided with! block having adiagonalslot, and a pin movlablein saiddiagonal slot whereby said bar screw with said fee 4movement of thesame.

nation, with a feed plate and a'clamp plate,

said feed :screw with said plate, a journa plate upon which said feedscrew is mounted, saidA mea-ns having an ad'ustable connection with'saidfeed late an means actua-ted `at. predetermine Vintervals forvshift-,ing said journal plate laterally, f or the purpose specified.;

15. -In -a button hole machine, the com bination, with a feed plate anda clamp plate, of a feed screw, a feed -wheel mounted thereon, meansoperativel connecting said feed plate, a sliding plate having lugsadapted to interlock with the teeth of sa-idfeed wheel, means' formovingsaid plate in a rectangular path to revolve said screw, and meansfor shifting said feed screw and wheel to effect a reversal in the 16.In'a button hole-machine, the combination, .with a feed plate and aclamp plate, of a feed vscrew, means operatively connecting said feedscrew with said feed plate, a. slidingplate having two movements atrightmeans teinterlock with 'the teeth of said feedscrew and be moved out ofengagement therewith, means for operating saidsliding plate, and. meansforl shifting said feed screwand wheel to obtain a forward movementofthe screw and areversal thereof. 17. In a button hole machine, thecombination with a feed plate, a clamp plate, of a feed screw, a barhaving la shoe to engage the threads of said screw, means for operatingsaid screw. said bar having a connection with saidfeed plate for movingthe saine longitudinally, said connection including a block having adiagonal slot, and a vpin movable in said diagonal slot whereby said barmay move relative to said feed plate and throu h said diagonal slotand'pin connection, s ift the feed plate laterally.

18. In a button (hole machine the combi- -of a feed screw and barattached to said feedl plate at a point intermediate to said bar, andsaid bar having a -s hoe at one end arranged to engage the threads ofsaid screw, a plate having a diagonal slo't in which said bar isadjustable and means for separating said shoe from said feed screw atAany point in the travel of fhe screw thereon.V

19. In a button hole machine, tihe combination with a feed plate, aclamp late, of a .feed screw, a bar having a shoeo engage the threads ofsaid screw, means for operating `said screw said bar having a connectionwith said fee plate for moving the same longitudinally, said connectionincluding a may move relative to said 'feed plate and through saiddiagonal'4 slot and pin connection, shift the feed plate laterally, and

to vary the lateral shift of the' feedplate.

20. In abutton hole machina-the-combi--l nation with a feed plate and aclamp plate."

of a. feed screw, a plate laterally slidable upon said feed plate, abar, a shoe carried by said bar and' adapted to engage said feed scre'w.and devices for-pivotally connecting said bar to said laterally slidingplate, said devices 'including an adjustable block having a diagonalslot, and a pin-adapted toengage said slot.

2l. In a button hole machine, the combination. with a feed plate and aclamp plate, of a feed screw operatively connected with said feed plate,a. shifter plate, lmeans ca rried b v said feed plate for positivelymoving said shifter plate, means for revolving said feed screw, andmeans actuated by said revolving means for operating said shifter soyplate t move said feed screw and feed plate,

substantially as described.

:22. In a button hole machine, the eombination, with a feed plate and aclamp plate,

of a shifterplate and means actuated therebyto shift said feed and clampplates, means carried by' said feed plate for moving saidv shifterplate, a'sliding plate, and means for v operating the same, said slidingAplate having means to 4engage and move -said shifter plate when ithasbeen set by the operation-- of said feed plate. 28. The combination,with a feed platel and a clamp plate, of a feeding means therefor, ashifter plate actuated ata pre-` determined period by said feed plateand means actuated by Said shifter plateto fslnft said feed and clampplates, .a slidmoP plate having armsarranged to engage sai shifter platewhen it has'been set. by the movement of said feed plate, and means foractuating said sl iding plate, substantially as described.

524-. The combination, with a frame, of a transversely sliding plate, afccd plate arranged to slide with said rst named plate and having atransverse movement with respect thereto, a clamp plate, a feed screw, abar pivoted on said feed plate and having a shoe to' engage said screw,means pivotally connect-ing the opposite end of said bar with said firstnamed plate.-

25. The combination, with a friame, of a transversely sliding slottedflat'fi, a feed' plate having a lengthwise movement .with

said first named plate and movable laterally independently thereof, afeed screw and means for revolving the same, a plate,

a bar having a shoe at one end-to bearon'.

said feed screw and pivoted at apoint intermediate to its ends on saidfeed plate, saldi 'bar having an adjustable connectlon ,wlth

' said first named plate whereby the shifting of said feed plate can beregulatd according to the width of the button hole.

. Iplates, a vertically and horizontally sliding plate having dependingarms arranged to engage said shifter plate, and means for actuating saidsliding -plate to shift said feed means and said feed plate.

27. In a` button hole machine, the combination, with a. feed plate and aclamp plate, ofa feed screw operatively connected therewith, a shifterplate, and means actuated Vthereby to shift said feed and clamp plates,

means carried by said feed plateto engage and operate said shifterplate, means for operating said screw, and means actuated by saidoperating means for engaging said shifter plate at predeterminedintervals and shifting said screw and feed plate.

28. In a button hole machine, the combination, with a clamp plate, a.feed -plate and a rocker arm, and means for operating said rocker arm,of a slidingmember adapted to be actuated by said rocker arm in acircumscribed rectangular path once for every four strokes of saidrocker arm, a reciprocating member lcoperating with said sliding member,and means actuated by said sliding member and said reciprocating memberfor operating the-said clamp plate and said feed plate in a step by stepmovement around the button hole.

29. In a button hole machine, the combination, with a clamp plate, afeed plate and a rocker arm and means for operating said rocker arm, ofa sliding member adapted to be actuated by said rocker arm in arectangular path once for every four strokes of said rocker arm, areciprocating member coperating with said sliding member, guides andstops to positively cont-rol and limit the movement of the said slidingmember and said reciprocating member, and means actuated by said slidingmember and said reciprocating member for operating said clamp plate andsafid feed Iplate in a step by step movement around the button hole.

80. The combination with a feed plate and a clamp plate, of a slidingplate connected with said feed plate, a .feed screw,means for operatingthe same, an actuating memby said actuating member, and having a.dlagonal slot therein, a pin carried by sald sliding plate and engagingsaid slot, and

' for operating the said rocker arm, of a sliding member adapted to beactuated by the sald rocker`armto describe one side of a er engagingsaid feed screw, a block vcarried rectangle for every stroke'of thesaidrocker@ arm, a reciprocating member coperating(y with the saidsliding member, a cam surface forming a part of said reciprocatingmember and inclined to the direction of its travel,

a slotted sliding plate cooperating with the said cam surface andsuitable connections between said slottedv plate and said feed plate,.for the purpose specified.

32. The combination, with a'feed plate anda lclamp plate, of a feedScrew operatively connected wit-h said feed plate,a feed wheel mountedon said feed screw and having pins projecting therefrom, a plate havinglugs thereon adapted to pass between the pins on said wheel, the lugs onone side of said plate being out of engagementA with said pins whilethose on the other side are in engagement therewith, means for operatingsaid plate and means for shifting from side to side'said feed screwrelative to said plate to change the direction of movement of saidscrew.

33. The combination, with a feed plate and a clamp plate, of a feedscrew opera.-

t-ively connected with said 'feedl plate, a feed wheel for actuatingsaid feed screw, a plate arranged to slide transversely with respect tosaid screw and having means for operating said feed wheel and means forshifting said feed screw from side to side to change the point ofengagement thereof with the operating means on said plate, whereby themovement of the feed screw is reversed.

34; In a button hole machine, the combination, with a clamp plate, 'afeed plate and a. rocker arm and means for operating said rocker arm, ofa sliding member adapted to be actuated by said rocker arm in acircumscribed rectangular path once for every four strokes of saidrocker arm, and means actuated from said sliding member for operatingsaid clamp plate and said feed plate in a lstelp by step movement aroundthe button io e.

35. In a button hole machine, the combination, with a clamp plate and afeed plate, of a sliding member and means for actuatingit in acircumscribed rectangular path, a reciprocating member operated .by saidsliding member, and means for convertin the movements of said slidingmember and said reciprocat-in member into movements for operating saiclamp plate and said feed plate in a step-by-step movement around thebuttonhole. A 36. In a button hole machine, the combination, with aclamp plate and a feed plate, of a .sliding membermeans for actuatingsaid sliding member in acircumscribed rectangular path once for everyfour strokes of its actuating means, and means for converting themovements of said sliding member and said reciprocating member intomovements for'o'perating said clamp plate and said feed plate in astepbystep move,

for intermittently rotating said feed scre\v,`

and means for actuating said feed plate from said feed screw.

38.- In a but-tonhole machine, the combination with a feed plate and aclamp plate, a sliding plate, means for moving said sliding plate in arectangular path, a feed screw, means operated by said sliding plate forintermittently rc ating said feed screw, means for act-uating'said feedplate from said feed screw, and means for reversing the direction ofmovement of said feed screw operated by .said sliding plate andcontrolled by the movement of said fecdslide.

39. ln a buttonhole machine, the combination with a feed plate and aclamp plate, of a feed screw, means operatively connecting said screwwith said feed plate, a feed wheel mounted on said screw and having aseries of teeth, means including av plate movable in a rectangular pathand adapted to engage said teeth and revolve said screw,

and means for moving said plate in said rectangular path.

40. The combination with a feed plate and a clamp plate, of a feed screwoperatively connected with said feed plate, an operating plate for saidfeed screw, means for moving said plate in a rectangular path, meanscarried by said plate for engaging and intermittently rotating said feedscrew, and means for shifting said feed screw lat erally relative tosaid plate for changing the direction of movement of said screw.

4l. In a buttonhole machine, the combination with a clamp plate and avfeed plate, of a sliding member and means for actuating said slidingmember in a circumscribed rectangular path, said sliding membercompleting its cycle during every two reciprocations of the needle, andmeans for operating said feed plate from said sliding member, wherebysaid feed plate is vibrated laterally and moved longitudinally for thestitching of a buttonhole.

In witness whereof, l have hereunto set my hand this th day of January1909.

, JAMES JESSEN.

Witnesses:

J. A. BYING'roN, C. Gr. HANsoN.

